Apple is pushing its users very hard to upgrade to the latest security standards. They feel so strongly that something called 2-Factor Authentication can help protect its users that macOS 10.12 Sierra even includes a deceptively simple dialog box to switch the feature on for users.

We will explain in plain english how this protects you and show in a live demonstration why despite the caveats of inadvertently setting up this feature, it is still a good idea to consider upgrading your Apple ID account to 2-Factor Authentication.